Predicted to enable alpha-tubulin binding activity; beta-tubulin binding activity; and tubulin-glutamic acid ligase activity. Predicted to act upstream of or within protein polyglutamylation. Predicted to be located in 9+0 non-motile cilium and ciliary basal body. Orthologous to human TTLL7 (tubulin tyrosine ligase like 7). [provided by Alliance of Genome Resources, Apr 2022]